actions — Shorewall action declaration file
/etc/shorewall/actions
This file allows you to define new ACTIONS for use in rules (see shorewall-rules(5)). You define the iptables rules to be performed in an ACTION in /etc/shorewall/action.action-name.
ACTION names should begin with an upper-case letter to distinguish them from Shorewall-generated chain names and they must meet the requirements of a Netfilter chain. If you intend to log from the action then the name must be no longer than 11 characters in length. Names must also meet the requirements for a Bourne Shell identifier (must begin with a letter and be composed of letters, digits and underscore characters).
http://shorewall.net/Actions.html
shorewall(8), shorewall-accounting(5), shorewall-blacklist(5), shorewall-hosts(5), shorewall-interfaces(5), shorewall-ipsec(5), shorewall-maclist(5), shorewall-masq(5), shorewall-nat(5), shorewall-netmap(5), shorewall-params(5), shorewall-policy(5), shorewall-providers(5), shorewall-proxyarp(5), shorewall-route_routes(5), shorewall-routestopped(5), shorewall-rules(5), shorewall.conf(5), shorewall-tcclasses(5), shorewall-tcdevices(5), shorewall-tcrules(5), shorewall-tos(5), shorewall-tunnels(5), shorewall-zones(5)